The semisubmersibleLeiv Eiriksson has completed drilling and production testing of well 7220/11-4 (Alta-4) located in license PL609 in the southern Barents Sea, roughly 2 km (1.24 mi) south of the 7220/11-1 discovery well and 2.5 km (1.55 mi) north of Alta-3.
Alta-4 encountered a gross hydrocarbon column of 48 m (157 ft), comprising 4 m (13 ft) of gas and 44 m (144 ft) of oil in a sequence of Permian-Triassic clastic carbonate sediments.
Pressure data revealed the same fluid contacts and gradients as observed in previous wells drilled on Alta, confirming good communication across the large structure.
A production test in the oil zone flowed at a stabilized rate of 6,050 b/d with low pressure drawdown, constrained by rig testing facilities. The test confirmed good reservoir properties and lateral continuity within the Permian-Triassic clastic reservoirs.
The Leiv Eiriksson will now drill a side track 900 m (2,953 ft) north of the Alta-4 well to assist with placement of a horizontal well for an extended-well test planned for next year.
Following completion of the side track the rig will spud the Børselv prospect, also located in PL609.